An avalanche warning is in effect through 7 a.m. Sunday in Selkirk Mountains and the West and East Cabinet Mountains in Boundary and Bonner Counties above 4,000 feet. Very dangerous avalanches conditions will develop from heavy snowfall and strong winds, and last through Sunday morning.
You can very easily trigger avalanches large enough to bury or kill you, and some will release spontaneously. Avoid travel in avalanche terrain during this period.
Heavy snowfall is expected to overload pre-existing weak snow layers. It will be very likely for backcountry travelers to trigger avalanches and natural avalanches are likely. Avalanches can break wide across terrain features and run long distances to lower elevations.